Server RAM upgrade?

the server has crashed allot in these past few days, either it is due to the increased amount of fly modders or the sudden rise in redstone use, but with 1.8 on the verge of being released i think it would be a great idea to get a RAM upgrade for the server, this would benefit all the players as it would mean less crashes and less rollbacks, im sure when 1.8 comes out the game is going to be much more laggy anyway and i don't think the server will be able to run as it does now without crashing even more,i ask you to highy considerate this as it would be extremely helpful to all us builders on the server

thank you